Question

I am writing small application in python which read records from Oracle and insert them into Vertica.

To read from Oracle I am using the cx_Oracle python package and to write into Vertica I am using the pyodbc package.

When I read a date column from Oracle I get it in the following format:

datetime.datetime(2011, 9, 13, 10, 47, 54, 795658)

Edit:

When I hit the following query in vertica :

INSERT INTO "TEST" (COL1) values(datetime.datetime(2011, 9, 13, 10, 47, 54, 795658))

I get the following error:

Error: ERROR: schema "datetime" does not exist
SQLState:  3F000
ErrorCode: 0

My question is how to convert this into a Vertica time stamp column.

Answer 1

You are trying to mix Python code and SQL; your Vertica server is trying to interpret the datetime.datetime information as a SQL schema, and it fails.

Use parameters instead:

from datetime import datetime

cursor.execute('INSERT INTO "TEST" (COL1) values(?)',
    datetime(2011, 9, 13, 10, 47, 54, 795658))